Koninklijke Philips Corporation N.v.

Koninklijke Philips Electronics N.v.

Abbott Rapid Diagnostics International Unlimited Company

Philips Intellectual Property & Standards Gmbh

Olaf Such

Josef Lauter

Jens Muehlsteff

Harald Reiter

Ralf Schmidt

Stefan Michael Schneider

Andras Montvay

Herfried Karl Wieczorek

Robert Pinter

Christian Reichinger

Gereon Vogtmeier

Francisco Morales Serrano

Michael Perkuhn

Heribert Baldus

Karin Klabunde

Cristian Nicolae Presura

Carsten Heinks

Andreas Brauers

Gerd Lanfermann

Ralph Wilhelm Christianus Gemma Rosa Wijshoff

Jeroen Adrianus Johannes Thijs

Claudia Hannelore Igney

Jens Muhlsteff

Xavier Aubert

Gary Garcia Molina

Guido Musch

Gert Hooft

Jeroen Thijs

Fabian Kohler

Thanh Tu Hellmich-Duong

Carsten Buenning

The present invention relates to a sensor device and method for obtaining physiological information of a subject. The sensor device comprises a PPG sensor (), a motion sensor () and a device () for obtaining physiological information of the subject. The device comprises a processing unit () for generating an output signal carrying physiological information by (i) modulating the motion reference signal on a carrier signal of the first set of carrier signals or on a second carrier signal orthogonal to the first set of carrier signals to obtain a modulated signal and combining the modulated signal with the modulated PPG signals to obtain the output signal or (ii) demodulating the modulated PPG signals, performing artifact-reduction on the demodulated PPG signals using the motion reference signal to obtain artifact-reduced PPG signals and modulating the artifact-reduced PPG signals on the first set of carrier signals to obtain the output signal.

Sensor device and method for sensing physiological information of a subject

The present invention relates to a patient monitoring system for monitoring cardio pulmonary performance or the like by means of capacitive measurement. Further the invention relates to a method for monitoring cardio pulmonary performance or the like by means of a capacitive measurement. In order to provide a reliable technique for monitoring cardio pulmonary performance or the like, which technique is particularly suitable for home use, a patient monitoring system () for monitoring cardio pulmonary performance or the like by means of capacitive measurement is suggested, said system () comprising a number of electrodes () arranged in the form of a matrix (), said electrodes () being adapted to be integrated with a bed () or the like, each electrode () being individually selectable, means () for determining a number of electrodes () depending on the position of the patient on the bed () or the like, said means () being adapted to determine the number of electrodes () by determining the capacitance of a number of electrodes (), and means () for selecting a number of said determined electrodes () for carrying out a capacitive measurement.

Patient monitoring system and method

The invention relates to a blood oximeter for measuring the oxygenation and at least one other parameter of flowing blood in living tissue. According to the invention, the blood oximeter comprises two lightsources () emitting light of different wavelengths into tissue, and preferably a light detector () for detecting a transmitted and/or reflected part of the light emitted into the tissue, wherein at least one of the light sources is a laser with a laser cavity emitting a laser beam, the laser being adapted to allow a part of the laser beam which is scattered by the tissue to re-enter into the laser cavity, and wherein a laser beam sensor () for measuring the light emitted from the laser is provided, the laser beam sensor (), thus, obtaining a signal which varies in accordance with the self-mixing interferometric effect between the original laser beam and the scattered laser beam. Accordingly, such a blood oximeter is provided that performs well at low perfusion and which further allows for reliable measurements.

Blood oximeter

In a medical pulse oximetry sensor () at least two light emitting diodes () are disposed to emit red light and infrared light through a portion of a subject's anatomy with a typically high oxygenated blood throughput. Typically, this area is also relatively narrow, to allow the light to pass through the area with acceptable attenuation, such as a finger or an earlobe. Light emitted from the LEDs () is incumbent upon an integrated circuit () printed from a single CMOS substrate (). The integrated circuit () includes all preprocessing and post-processing elements needed to convert the detected light signals into a pulse oximetry measurement. These elements include a photodetector (), a photo pre-amplifier (), a sampler/holder (), an analog to digital converter (), a microprocessor () a rangefinder (), a timing control circuit () and an LED control circuit (). By integrating all pre and post processing functions into the carriage housing (), the system becomes more efficient, less expensive to manufacture, and more robust to ambient light and x-ray radiation.

Integrated pulse oximetry sensor

The medical communication system comprises a plurality of medical identification devices (). Each identification device () is attached to one particular patient (). A registration processor generates a unique patient identification data that is stored in an electronic patient identification code memory (). Each identification device () includes an intra-body wireless communication device () which transmits the patient's identification on the patient's body. A medical device (), which is linked to the patient () to measure a vital function, periodically automatically receives the patient's identification code to continually ensure association to a correct patient.

System for automatic continuous and reliable patient identification for association of wireless medical devices to patients

In order to provide a technique for determining high-quality blood pressure values of a patient, especially in cases of unsupervised blood pressure measurements in a home environment, it is suggested to use a system () for determining the blood pressure of a patient () comprising a blood pressure measuring device () for measuring a blood pressure value, an auxiliary device () for measuring the motor activity of the patient () during a defined period of time prior to the blood pressure measurement, and a processing device (), said processing device () being adapted to obtain the motor activity information and the blood pressure value, said processing device () being further adapted to automatically assess the blood pressure value using the motor activity information, and said processing device () being further adapted to provide a measuring result depending on the result of the assessment.

System and method for determining the blood pressure of a patient

A modulator for a communications system includes a spread spectrum coder and a pulse code modulator having a signal input port connectable to a signal output port of the spread spectrum coder. The modulator performs a robust and error free modulation and coding scheme by using a modified spread spectrum scheme combined with pulse code modulation. The communication system contains a low data rate, noise robust modulation and coding scheme using a very simple transmitter. This results in a very straightforward transmitter circuit, reducing size and costs of the transmitter.

Inductive communication system with increased noise immunity using low-complexity transmitter

The invention relates to a system and method for measuring bioelectrical signals of a user. Furthermore the invention relates to a computer program for measuring bioelectrical signals of a user. In order to provide a technique for measuring bioelectrical signals with reduced motion artefacts a new method is provided, comprising the steps of determining the displacement of an electrode, the electrode being adapted for measuring a bioelectrical signal, and adjusting the position of said electrode depending on the determined displacement. The present invention can be used in any system for measuring bioelectrical signals, which uses electrodes, e.g. in any ECG measurement system. With the reduction of artefacts according to the present invention the performance of all those systems can be substantially increased.

System and method for measuring bioelectrical signals of a user

A magnetic induction tomography system and method for studying the electromagnetic properties of an object includes generator coils adapted for generating a primary magnetic field, and sensor coils adapted for sensing a secondary magnetic field. Actuators provide relative movement between the generator coils and/or the sensor coils on the one hand and the object to be studied on the other hand.

Magnetic induction tomography system and method

A system for monitoring a physiological condition of an individual. The system () comprises sensing means () arranged to pick up a first signal (M) in a first mode of the system, said first signal being representative of the physiological condition and to forward the first signal to a signal processing unit (). The system comprises an actuatable control unit () positioned remote from the signal processing unit, the control unit () being suitable to generate a second signal (T) arranged to be superimposed on the first signal (M). The signal processing unit () is arranged to decode the second signal and to make the system enter into a second mode upon receipt of the second signal (T).

Power saving uplink for biosensors

The system () according to the invention is arranged to support an automatic informing of callers (S, S, . . . , SN) upon an event of an interrupt in a telecommunication line engaged with a receiving station () according to a telecommunication protocol. In order to carry out said automatic informing the receiving station () is adapted with a computer program () arranged to transmit a prerecorded message to all engaged parties upon an event of the interrupt. The computer program is further arranged to carry out background interaction with a caller who is put on hold, so that the caller is not left behind unattended.

Telematic system with an automatic reconnection support

A device to carry out a bioelectrical interaction with an individual by means of electrodeswhereby an on-demand verification of the integrity of the electrical contact of the electrodes is implemented. The devicecomprises a control unitarranged to determine an occurrence of the predefined event related to a quality of a measured signal. In case the predetermined event is detected, the control unitactuates the testing means. The testing means is arranged to generate the test signals, Iand to apply them via a coupling circuitto the electrodes. In case it is desired that cumulative information about the contact integrity is obtained, is it sufficient to apply a single test signal per electrode. In case it is required to determine which of the electrodes has lost its contact, a sequence of test signals is generated by the sequencer. The response signal from the electrodesis forwarded to the input filter, which is preferably also used for a normal signal analysis. The signal from the input filteris directed via the input impedanceto the input amplifier. The amplified response signal is forwarded to the signal processing meanswhich is arranged to analyze the response signal. Preferably, an amplitude analysis is done. The signal from the signal processing meansis supplied to the analog-to-digital converter (ADC)after which a digital processing of the response signal is carried out by means of a further processing unit. In case the further processing unitdetermines that the integrity of the contact is below the allowable level, the lead-off indicatoris actuated.

Device arranged for carrying out a bioelectrical interaction with an individual and a method for on-demand lead-off detection

An electrode assembly arranged to carry out a bioelectrical interaction with an individual, said electrode assembly comprising a conductive material having a contact surface arranged to be brought into contact with a receiving area of the individual's skin, said conductive material being electrically connectable to a suitable electronic device to enable said interaction, the electrode assembly having an impedance control means arranged to measure and control the impedance of the receiving area of the individual's skin prior to an event of the bioelectrical interaction.

Electrode assembly and a system with impedance control

The invention relates to a wearable device arranged for enabling a bioelectrical interaction with an individual when being brought into contact with the individual's skin I, said device comprising electrodesarranged to carry out said interaction by means of a first electrical signal, said electrodes comprise motion artifact detection meansThe electrode assemblycomprises electrodearranged to carry out a bioelectrical interaction with the individual by means of measuring an electrical signal on the body of the individual I and/or applying an electrical signal to the body of the individual. In order to enable said bioelectrical interaction the electrodeis provided with an electrical cableAccording to the invention, the electrodeis arranged with a prThe pressure sensoris arranged to measure a normal force component of an external force applied to the electrode due to movement of the individual. Preferably the pressure sensoris a force/pressure sensitive resistor or a capacitive pressure sensor. The pressure sensor is arranged to produce an electrical signal, referred to as the second signal, the magnitude of the second signal being proportional to the pressure load. The pressure sensoris arranged with cablesfor purposes of signal proce

Wearable device for bioelectrical interaction with motion artifact correction means

A data acquisition system which includes data generating and processing units (), each of which includes a respective data source () which serves to generate data. The data each time generated is processed by means of associated data processing means () in such a manner that each time a digital data word which comprises at least two bits is presented for output. The output of the digital data words takes place in synchronous-parallel fashion in dependence on first control signals (). Shift registers () which are coupled to one another so as to form a chain propagate the digital data words in synchronous-parallel fashion in dependence on second control signals () and are coupled to a respective associated data generating and processing unit ().

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Aachen, Germany

Olaf Such